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Signed-off-by: Raphael Gallais-Pou --- arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi b/arch/arm64/boo= t/dts/st/stm32mp25-pinctrl.dtsi index c34cd33cd855fb28b65a39b59b49e089345ce9a6..2f853f3fae6d84756300f19da32= d6cb0297d9e20 100644 --- a/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi +++ b/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi @@ -212,6 +212,23 @@ pins { }; }; =20 + i2c2_pins_b: i2c2-1 { + pins { + pinmux =3D , /* I2C2_SCL */ + ; /* I2C2_SDA */ + bias-disable; + drive-open-drain; + slew-rate =3D <0>; + }; + }; + + i2c2_sleep_pins_b: i2c2-sleep-1 { + pins { + pinmux =3D , /* I2C2_SCL */ + ; /* I2C2_SDA */ + }; + }; + ospi_port1_clk_pins_a: ospi-port1-clk-0 { pins { pinmux =3D ; /* OSPI1_CLK */ --=20 2.43.0 From nobody Thu Apr 2 14:14:41 2026 Received: from GVXPR05CU001.outbound.protection.outlook.com (mail-swedencentralazon11013017.outbound.protection.outlook.com [52.101.83.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CD825349B11; 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It provides a parallel digital RGB flow to be used by display interfaces. Add the LTDC node. Signed-off-by: Raphael Gallais-Pou --- arch/arm64/boot/dts/st/stm32mp231.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm64/boot/dts/st/stm32mp231.dtsi b/arch/arm64/boot/dts/s= t/stm32mp231.dtsi index 88e214d395ab7af53e2707dbc2dfc6b3d000a798..a6840882f512b132b69b917ccbc= 6cfd4a502a481 100644 --- a/arch/arm64/boot/dts/st/stm32mp231.dtsi +++ b/arch/arm64/boot/dts/st/stm32mp231.dtsi @@ -1178,6 +1178,18 @@ exti2: interrupt-controller@46230000 { <&intc GIC_SPI 213 IRQ_TYPE_LEVEL_HIGH>; /* EXTI_70 */ }; =20 + ltdc: display-controller@48010000 { + compatible =3D "st,stm32mp251-ltdc"; + reg =3D <0x48010000 0x400>; + interrupts =3D , + ; + clocks =3D <&rcc CK_KER_LTDC>, <&rcc CK_BUS_LTDC>; + clock-names =3D "lcd", "bus"; + resets =3D <&rcc LTDC_R>; + access-controllers =3D <&rifsc 80>; + status =3D "disabled"; + }; + intc: interrupt-controller@4ac10000 { compatible =3D "arm,gic-400"; reg =3D <0x4ac10000 0x1000>, --=20 2.43.0 From nobody Thu Apr 2 14:14:41 2026 Received: from DB3PR0202CU003.outbound.protection.outlook.com (mail-northeuropeazon11010010.outbound.protection.outlook.com [52.101.84.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 38142346E75; 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While having this flag is semantically correct, it for now leads to an improper setting of the clock rate. The ck_ker_ltdc parent clock is the flexgen 27, which does not support changing rates yet. To overcome this issue, a fixed clock can be used for the kernel clock. Signed-off-by: Raphael Gallais-Pou --- arch/arm64/boot/dts/st/stm32mp231.dtsi | 6 ++++++ arch/arm64/boot/dts/st/stm32mp235.dtsi | 6 ++++++ 2 files changed, 12 insertions(+) diff --git a/arch/arm64/boot/dts/st/stm32mp231.dtsi b/arch/arm64/boot/dts/s= t/stm32mp231.dtsi index a6840882f512b132b69b917ccbc6cfd4a502a481..05055bc523850282a2e2b217b18= 0930b39231189 100644 --- a/arch/arm64/boot/dts/st/stm32mp231.dtsi +++ b/arch/arm64/boot/dts/st/stm32mp231.dtsi @@ -45,6 +45,12 @@ clk_dsi_txbyte: clock-0 { clock-frequency =3D <0>; }; =20 + clk_flexgen_27_fixed: clk-54000000 { + #clock-cells =3D <0>; + compatible =3D "fixed-clock"; + clock-frequency =3D <54000000>; + }; + clk_rcbsec: clk-64000000 { compatible =3D "fixed-clock"; #clock-cells =3D <0>; diff --git a/arch/arm64/boot/dts/st/stm32mp235.dtsi b/arch/arm64/boot/dts/s= t/stm32mp235.dtsi index 2719c088dd594ba90f683d8809b54fecf471ba40..ae98f503529f0a2473f250b4d91= 95820135ee1bc 100644 --- a/arch/arm64/boot/dts/st/stm32mp235.dtsi +++ b/arch/arm64/boot/dts/st/stm32mp235.dtsi @@ -5,6 +5,12 @@ */ #include "stm32mp233.dtsi" =20 +<dc { + compatible =3D "st,stm32mp255-ltdc"; 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Add the LVDS node. Signed-off-by: Raphael Gallais-Pou --- arch/arm64/boot/dts/st/stm32mp235.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm64/boot/dts/st/stm32mp235.dtsi b/arch/arm64/boot/dts/s= t/stm32mp235.dtsi index ae98f503529f0a2473f250b4d9195820135ee1bc..7a87c344a4fe3c5c6af154721d4= 229eb330d4cb8 100644 --- a/arch/arm64/boot/dts/st/stm32mp235.dtsi +++ b/arch/arm64/boot/dts/st/stm32mp235.dtsi @@ -12,6 +12,18 @@ <dc { }; =20 &rifsc { + lvds: lvds@48060000 { + compatible =3D "st,stm32mp255-lvds", "st,stm32mp25-lvds"; + reg =3D <0x48060000 0x2000>; + #clock-cells =3D <0>; + clocks =3D <&rcc CK_BUS_LVDS>, <&rcc CK_KER_LVDSPHY>; + clock-names =3D "pclk", "ref"; + resets =3D <&rcc LVDS_R>; + access-controllers =3D <&rifsc 84>; + power-domains =3D <&cluster_pd>; + status =3D "disabled"; + }; + vdec: vdec@480d0000 { compatible =3D "st,stm32mp25-vdec"; reg =3D <0x480d0000 0x3c8>; --=20 2.43.0 From nobody Thu Apr 2 14:14:41 2026 Received: from DUZPR83CU001.outbound.protection.outlook.com (mail-northeuropeazon11012055.outbound.protection.outlook.com [52.101.66.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CFDF8346AC5; 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Signed-off-by: Raphael Gallais-Pou --- arch/arm64/boot/dts/st/stm32mp231.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/st/stm32mp231.dtsi b/arch/arm64/boot/dts/s= t/stm32mp231.dtsi index 05055bc523850282a2e2b217b180930b39231189..74df739d8f8cdc82922cad99934= 86b97c50d9084 100644 --- a/arch/arm64/boot/dts/st/stm32mp231.dtsi +++ b/arch/arm64/boot/dts/st/stm32mp231.dtsi @@ -961,6 +961,7 @@ exti1: interrupt-controller@44220000 { syscfg: syscon@44230000 { compatible =3D "st,stm32mp23-syscfg", "syscon"; reg =3D <0x44230000 0x10000>; + #clock-cells =3D <0>; }; =20 pinctrl: pinctrl@44240000 { --=20 2.43.0 From nobody Thu Apr 2 14:14:41 2026 Received: from AM0PR83CU005.outbound.protection.outlook.com (mail-westeuropeazon11010007.outbound.protection.outlook.com [52.101.69.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9E12D349B04; Tue, 10 Feb 2026 10:04:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Signed-off-by: Raphael Gallais-Pou --- arch/arm64/boot/dts/st/stm32mp235f-dk.dts | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm64/boot/dts/st/stm32mp235f-dk.dts b/arch/arm64/boot/dt= s/st/stm32mp235f-dk.dts index c3e68806822365ab9ec7ccee2eba73a117a8c331..0c7874885381da73b9274078f3e= fb9f0b042504f 100644 --- a/arch/arm64/boot/dts/st/stm32mp235f-dk.dts +++ b/arch/arm64/boot/dts/st/stm32mp235f-dk.dts @@ -105,6 +105,34 @@ scmi_vddio1: regulator@0 { regulator-min-microvolt =3D <1800000>; regulator-max-microvolt =3D <3300000>; }; + scmi_vddcore: regulator@11 { + reg =3D ; + regulator-name =3D "vddcore"; + }; + scmi_v1v8: regulator@14 { + reg =3D ; + regulator-name =3D "v1v8"; + }; + scmi_v3v3: regulator@16 { + reg =3D ; + regulator-name =3D "v3v3"; + }; + scmi_vdd_emmc: regulator@18 { + reg =3D ; + regulator-name =3D "vdd_emmc"; + }; + scmi_vdd3v3_usb: regulator@20 { + reg =3D ; + regulator-name =3D "vdd3v3_usb"; + }; + scmi_v5v_hdmi: regulator@21 { + reg =3D ; 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}; =20 + panel_lvds: display { + compatible =3D "edt,etml0700z9ndha", "panel-lvds"; + enable-gpios =3D <&gpioi 4 GPIO_ACTIVE_HIGH>; + backlight =3D <&panel_lvds_backlight>; + power-supply =3D <&scmi_v3v3>; + width-mm =3D <156>; + height-mm =3D <92>; + data-mapping =3D "vesa-24"; + status =3D "okay"; + + panel-timing { + clock-frequency =3D <54000000>; + hactive =3D <1024>; + vactive =3D <600>; + hfront-porch =3D <150>; + hback-porch =3D <150>; + hsync-len =3D <21>; + vfront-porch =3D <24>; + vback-porch =3D <24>; + vsync-len =3D <21>; + }; + + port { + lvds_panel_in: endpoint { + remote-endpoint =3D <&lvds_out0>; + }; + }; + }; + + panel_lvds_backlight: backlight { + compatible =3D "gpio-backlight"; + gpios =3D <&gpioi 4 GPIO_ACTIVE_HIGH>; + default-on; + status =3D "okay"; + }; + reserved-memory { #address-cells =3D <2>; #size-cells =3D <2>; @@ -100,6 +136,59 @@ phy1_eth1: ethernet-phy@1 { }; }; =20 +&i2c2 { + pinctrl-names =3D "default", "sleep"; + pinctrl-0 =3D <&i2c2_pins_b>; + pinctrl-1 =3D <&i2c2_sleep_pins_b>; + i2c-scl-rising-time-ns =3D <108>; + i2c-scl-falling-time-ns =3D <12>; + clock-frequency =3D <400000>; + status =3D "okay"; + /* spare dmas for other usage */ + /delete-property/dmas; + /delete-property/dma-names; + + ili2511: ili2511@41 { + compatible =3D "ilitek,ili251x"; + reg =3D <0x41>; + interrupt-parent =3D <&gpioi>; + interrupts =3D <6 IRQ_TYPE_EDGE_FALLING>; + reset-gpios =3D <&gpioi 0 GPIO_ACTIVE_LOW>; + status =3D "okay"; + }; +}; + +<dc { + status =3D "okay"; + port { + ltdc_ep0_out: endpoint { + remote-endpoint =3D <&lvds_in>; + }; + }; +}; + +&lvds { + status =3D "okay"; + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + lvds_in: endpoint { + remote-endpoint =3D <<dc_ep0_out>; + }; + }; + + port@1 { + reg =3D <1>; + lvds_out0: endpoint { + remote-endpoint =3D <&lvds_panel_in>; + }; + }; + }; +}; + &scmi_regu { scmi_vddio1: regulator@0 { regulator-min-microvolt =3D <1800000>; --=20 2.43.0 From nobody Thu Apr 2 14:14:41 2026 Received: from DUZPR83CU001.outbound.protection.outlook.com (mail-northeuropeazon11012001.outbound.protection.outlook.com [52.101.66.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DCEAF346FAE; 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Signed-off-by: Raphael Gallais-Pou --- arch/arm64/boot/dts/st/stm32mp257f-dk.dts | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts b/arch/arm64/boot/dt= s/st/stm32mp257f-dk.dts index e718d888ce21b6f124331543c09c1e66e6304964..4e45562ceb3dabb19eca3340337= b364f63508215 100644 --- a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts +++ b/arch/arm64/boot/dts/st/stm32mp257f-dk.dts @@ -105,6 +105,34 @@ scmi_vddio1: regulator@0 { regulator-min-microvolt =3D <1800000>; regulator-max-microvolt =3D <3300000>; }; + scmi_vddcore: regulator@11 { + reg =3D ; + regulator-name =3D "vddcore"; + }; + scmi_v1v8: regulator@14 { + reg =3D ; + regulator-name =3D "v1v8"; + }; + scmi_v3v3: regulator@16 { + reg =3D ; + regulator-name =3D "v3v3"; + }; + scmi_vdd_emmc: regulator@18 { + reg =3D ; + regulator-name =3D "vdd_emmc"; + }; + scmi_vdd3v3_usb: regulator@20 { + reg =3D ; + regulator-name =3D "vdd3v3_usb"; + }; + scmi_v5v_hdmi: regulator@21 { + reg =3D ; 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}; =20 + panel_lvds: display { + compatible =3D "edt,etml0700z9ndha", "panel-lvds"; + enable-gpios =3D <&gpioi 4 GPIO_ACTIVE_HIGH>; + backlight =3D <&panel_lvds_backlight>; + power-supply =3D <&scmi_v3v3>; + width-mm =3D <156>; + height-mm =3D <92>; + data-mapping =3D "vesa-24"; + status =3D "okay"; + + panel-timing { + clock-frequency =3D <54000000>; + hactive =3D <1024>; + vactive =3D <600>; + hfront-porch =3D <150>; + hback-porch =3D <150>; + hsync-len =3D <21>; + vfront-porch =3D <24>; + vback-porch =3D <24>; + vsync-len =3D <21>; + }; + + port { + lvds_panel_in: endpoint { + remote-endpoint =3D <&lvds_out0>; + }; + }; + }; + + panel_lvds_backlight: backlight { + compatible =3D "gpio-backlight"; + gpios =3D <&gpioi 4 GPIO_ACTIVE_HIGH>; + default-on; + status =3D "okay"; + }; + + memory@80000000 { device_type =3D "memory"; reg =3D <0x0 0x80000000 0x1 0x0>; @@ -100,6 +137,59 @@ phy1_eth1: ethernet-phy@1 { }; }; =20 +&i2c2 { + pinctrl-names =3D "default", "sleep"; + pinctrl-0 =3D <&i2c2_pins_b>; + pinctrl-1 =3D <&i2c2_sleep_pins_b>; + i2c-scl-rising-time-ns =3D <108>; + i2c-scl-falling-time-ns =3D <12>; + clock-frequency =3D <400000>; + status =3D "okay"; + /* spare dmas for other usage */ + /delete-property/dmas; + /delete-property/dma-names; + + ili2511: ili2511@41 { + compatible =3D "ilitek,ili251x"; + reg =3D <0x41>; + interrupt-parent =3D <&gpioi>; + interrupts =3D <6 IRQ_TYPE_EDGE_FALLING>; + reset-gpios =3D <&gpioi 0 GPIO_ACTIVE_LOW>; + status =3D "okay"; + }; +}; + +<dc { + status =3D "okay"; + port { + ltdc_ep0_out: endpoint { + remote-endpoint =3D <&lvds_in>; + }; + }; +}; + +&lvds { + status =3D "okay"; + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + lvds_in: endpoint { + remote-endpoint =3D <<dc_ep0_out>; + }; + }; + + port@1 { + reg =3D <1>; + lvds_out0: endpoint { + remote-endpoint =3D <&lvds_panel_in>; + }; + }; + }; +}; + &scmi_regu { scmi_vddio1: regulator@0 { regulator-min-microvolt =3D <1800000>; --=20 2.43.0